Home / 124,155.29-171,215.20-83,411.48

Finding the Fourth Proportional to 124,155.29, 171,215.20 and 83,411.48

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Solution

The fourth proportional to 124,155.29, 171,215.20 and 83,411.48 is: 115,027.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,155.29 : 171,215.20 = 83,411.48 : x
  2. Step 2: Convert to fraction form
    124,155.29/171,215.20 = 83,411.48/x
  3. Step 3: Cross multiply
    124,155.29x = 171,215.20 × 83,411.48
  4. Step 4: Simplify right side
    124,155.29x = 14,281,313,762.80
  5. Step 5: Solve for x
    x = 14,281,313,762.80/124,155.29
  6. Step 6: Final answer
    x = 115,027.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.